Looks really slick, a definite step forward.
Just been reading through the thread you posted a link to - this guy at LL is hilarious (davep). I'm not sure he'd make a good peace envoy

I can see his point that not supporting the 7 series for this means he'd get less out of these new features but, wow, he's amazingly condescending to anybody who doesn't have really up to date systems. He even said that supporting series 8 should be considered "generous"
Here's a great post from him:
https://lists.secondlife.com/piperma...ay/009930.html
After that the thread kinda devolves a bit into a "what did he really mean" discussion